bufferutil/test/test.js

'use strict';

const { deepStrictEqual } = require('assert');
const { join } = require('path');

function use(bufferUtil) {
  return function () {
    it('masks a buffer (1/2)', function () {
      const buf = Buffer.from([0x6c, 0x3c, 0x58, 0xd9, 0x3e, 0x21, 0x09, 0x9f]);
      const mask = Buffer.from([0x48, 0x2a, 0xce, 0x24]);

      bufferUtil.mask(buf, mask, buf, 0, buf.length);

      deepStrictEqual(
        buf,
        Buffer.from([0x24, 0x16, 0x96, 0xfd, 0x76, 0x0b, 0xc7, 0xbb])
      );
    });

    it('masks a buffer (2/2)', function () {
      const src = Buffer.from([0x6c, 0x3c, 0x58, 0xd9, 0x3e, 0x21, 0x09, 0x9f]);
      const mask = Buffer.from([0x48, 0x2a, 0xce, 0x24]);
      const dest = Buffer.alloc(src.length + 2);

      bufferUtil.mask(src, mask, dest, 2, src.length);

      deepStrictEqual(
        dest,
        Buffer.from([0x00, 0x00, 0x24, 0x16, 0x96, 0xfd, 0x76, 0x0b, 0xc7, 0xbb])
      );
    });

    it('unmasks a buffer', function () {
      const buf = Buffer.from([0x24, 0x16, 0x96, 0xfd, 0x76, 0x0b, 0xc7, 0xbb]);
      const mask = Buffer.from([0x48, 0x2a, 0xce, 0x24]);

      bufferUtil.unmask(buf, mask);

      deepStrictEqual(
        buf,
        Buffer.from([0x6c, 0x3c, 0x58, 0xd9, 0x3e, 0x21, 0x09, 0x9f])
      );
    });
  };
}

describe('bindings', use(require('node-gyp-build')(join(__dirname, '..'))));
describe('fallback', use(require('../fallback')));